A new element design for an axis-independent, tunable, negative-permeability artificial meta-material
✍ Scribed by Gong Ouyang; Vikram Jandhyala
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 140 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A new meta‐material element that can realize axis‐independent negative permeability is proposed and analyzed. The element is constructed as an intuitive 3D analog of the well‐known flat split‐ring structure (SRR). Unlike the SRR, the proposed element exhibits negative permeability for three preferred coordinate axes, and therefore enables meta‐material applications such as focusing and efficient radiation from electrically small structures in multiple directions within the same structure. In addition, it is shown that the addition of lumped‐circuit components to the element enables both tunability and functionality at very small sizes, far from the intrinsic resonance of the structure itself. The designed element is then simulated rigorously using a previously reported integral‐equation technique that includes the ability to model linear and nonlinear tuning elements attached to the meta‐material elements. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 530–533, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20687